Home / 39,857.81-55,001.57-22,862.75

Finding the Fourth Proportional to 39,857.81, 55,001.57 and 22,862.75

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Solution

The fourth proportional to 39,857.81, 55,001.57 and 22,862.75 is: 31,549.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,857.81 : 55,001.57 = 22,862.75 : x
  2. Step 2: Convert to fraction form
    39,857.81/55,001.57 = 22,862.75/x
  3. Step 3: Cross multiply
    39,857.81x = 55,001.57 × 22,862.75
  4. Step 4: Simplify right side
    39,857.81x = 1,257,486,755.20
  5. Step 5: Solve for x
    x = 1,257,486,755.20/39,857.81
  6. Step 6: Final answer
    x = 31,549.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.